from datetime import datetime, timedelta
import time

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants
from info.models import User, News
from info.moduies.admin import admin_blu
from info.utils.common import user_login_data
from info.utils.response_code import RET


@admin_blu.route('/news_edit_detail')
def news_edit_detail():
    # 查询点击的新闻数据传入到模板中
    news_id = request.args.get("news_id")
    if not news_id:
        abort(404)
    try:
        news_id = int(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/news_edit_detail.html',errmsg = "参数错误")

    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

    if not news:
        return render_template('admin/news_edit_detail.html',errmsg="未查询到数据")
    #查询分类数据
    category_dict_li = []
    try:
        categories = Category.query.all()
    except Excption as e:
        current_app.logger.error(e)
        return render_template('admin/news_edit_detail.html',errmsg='查询数据错误')
    category_dict_li = []
    for category in categories:
        category_dict_li.append(category.to_dict())


    return render_template('admin/news_edit_detail.html')

@admin_blu.route('/news_edit')
# 新闻编辑
def news_edit():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1
    filters =[News.status == 0]
    # 如果搜索存在就搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_edit.html', data=context)


@admin_blu.route('/news_review_action',methods =["POST"])
def news_review_action():
    #1.接收参数
    news_id = request.json.get("news_id")
    action= request.json.get("action")
    # 校验参数
    if not all([news_id,action]):
        return jsonify(errno = RET.PARAMERR,errmsg= "参数错误")
    if action not in ("accept","reject"):
        return jsonify(errno = RET.PARAMERR,errmsg= "参数错误")
    # 查询到指定的新闻数据
    try:
        news = News.query.get(news_id)
    except Exception as e:
        return jsonify(errno = RET.DBERR,errmsg= "数据查询失败")
    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据 ")
    if action =="accept":
        # 接受
        news.status =0
    else:
        # 拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno = RET.PARAMERR,errmsg = "输入拒绝原因")
        news.status = -1
        news.reason = reason
    return jsonify(errno=RET.OK, errmsg="OK")

@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):
    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1
    filters =[News.status != 0]
    # 如果搜索存在就搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)

@admin_blu.route('/user_list')
def user_list():
    page = request.args.get("page",1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    users = []
    current_page = 1
    total_page = 1
    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        users = paginate.items
        current_page=paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_page.logger.error(e)
    # 进行模型列表转字典列表
    user_dict_li= []
    for user in users:
        user_dict_li.append(user.to_admin_dict())
    data = {
        "users":user_dict_li,
        "total_page":total_page,
        "current_page":current_page
    }

    return render_template('admin/user_list.html',data = data)



@admin_blu.route('/user_count')
def user_count():
    total_count = 0
    # 总人数
    try:
        total_count = User.query.filter(User.is_admin==False).count()
    except Exception as e:
        current_app.logger.error(e)
    # 月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_data = datetime.strptime(('%d-%02d-01'% (t.tm_year,t.tm_mon)),'%Y-%m-%d')
    try:
        mon_count = User.query.filter(User.is_admin ==False,User.create_time>begin_mon_data).count()
    except Exception as e:
        current_app.logger.error(e)
    #  日新增数
    day_count = 0
    begin_day_data = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon,t.tm_mday)), '%Y-%m-%d')
    try:
        day_count = User.query.filter(User.is_admin ==False,User.create_time>begin_day_data).count()
    except Exception as e:
        current_app.logger.error(e)

    # 线图数据
    active_time = []
    active_count = []
    #取到今天的时间
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_data = datetime.strptime(today_date_str, '%Y-%m-%d')
    for i in range(0,31):
        #取到今天的0点0分
        begin_data = today_data - timedelta(days = i)
        #取到后天的0点0分
        end_data = today_data - timedelta(days=(i-1))
        # 取到今天活跃的用户数据
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_data, User.last_login < end_data).count()
        active_count.append(count)
        active_time.append(begin_data.strftime('%Y-%m-%d'))

    # 反转 从前到后
    active_count.reverse()
    active_time.reverse()

    data = {
        "total_count":total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time":active_time,
        "active_count":active_count
    }

    return render_template('admin/user_count.html',data = data )

@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html',user = user.to_dict())


@admin_blu.route('/login',methods = ["GET","POST"])
def login():
    if request.method == "GET":
        # 判断当前是否有登录，如果有登录直接重定向到管理员后台主页
        user_id = session.get("user_id",None)
        is_admin = session.get("in_admin",False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')
    #取到登录的参数
    username = request.form.get("username")
    password = request.form.get("password")
    #判断参数
    if not all([username,password]):
        return render_template('admin/login.html',errmsg = "参数错误")

    #查询当前用户
    try:
        user = User.query.filter(User.mobile == username,User.is_admin ==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html',errmsg = "用户信息查询失败")
    if not user:
        return render_template('admin/login.html', errmsg="未查询到用户信息")
    #校验密码
    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="用户名或密码错误")
    #保存用户的登录信息
    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin
    #跳转到后台管理首页
    return redirect(url_for('admin.index'))









